Hot-air-pipe attachment for furnaces



(No Model.) 2 Sheets-Sheet 1.

G. L. BEERS.

HOT AIR. PIPE ATTAGHMEN'T FOR. FURNACES. No, 470,829. Patented Mar. 15, 1892.

W 444' ATTORNEYS.

(No Model.) 2'Sheets-Sheet 2.

. C. L. BEERS. HOT -A IR PIPE ATTACHMENT FOR FURNACES. No. 470,829. Patented Mar. 15, 1892 WITNESSES: |NVENTOR-' ATTORN EYS.

my invention.

NITED STATES PATENT FFICE.

HOT-AlR-PIPE ATTACHMENT FOR FURNACES.

SPECIFICATION forming part of Letters Patent No. 470,829, dated March 15, 1892.

Application filed July 27, 1891. Serial No. 400,834. (No model-l To all whom it may concern:

Be it known that I, CHARLES L. BEERs, of Scranton, in the county of Lackawanna, in the State of Pennsylvania, have invented new and useful Improvements in IIot-Air-Pipe Attachments for Furnaces, of which the following, takenin connection with the accompanying drawings, is a full, clear, and exact description. I

The object of this invention is to facilitate the adjustment of the air-pipes in their direction from the hot-air furnace to the take-up or vertical extensions of said pipes leading to the apartments of the building to be heated; and to that end the invention consists, essentially, in the combination,with the hot-air case of the furnace provided with an opening for the outlet of the hot air, of an annular shell of the form of a section of a globe and secured at its greatest circumference to the aforesaid ease around the opening thereof, a thimble provided with an annular rim and riding thereby on the aforesaid shell and provided with an annular rabbet adapted to be packed after the thimble is adjusted, and a coupling adj ustably connecting the thimble to the annular shelhas hereinafter more fully described, and specifically set forth in the claim.

In the annexed drawings, Figure 1 is a side view of a hot-air-pipe attachment embodying Fig. 2 is a transverse section of the same, and Figs. 3 and 4: are detached inner end views of the annular shell and thimble.

Similar letters of reference indicate corresponding parts.

0 represents the hot-air case or jacket of a hot-air furnace, the dome of which case is provided withthe opening 0 for the outlet of the hot-air to be conducted to the apartment of the building to be heated. Over said opening I place the annular shell a, which is of the form of a section of a globe and provided at its largest circumference with the flange a, by which it is seated on the case 0, around the opening 0, and rigidly secured thereto by rivets or bolts, as shown. Said shell is also provided with a cross-bar b, for the purpose hereinafter described.

t denotes the thimble to which the hot-air pipe P is attached, as represented by dotted lines in Figs. 1 and 2 of the drawings. This thimble is provided on one end with the annular rim t, by which it rides on the convex interior of the shell a, and is provided at the opposite end with a cross-bar b, and a suitable flexible couplingsuch asaspiral spring eis connected at opposite ends to the two cross bars I) and b to retain the thimble on the shell a. Said coupling allows the thimble to be moved on the shell to into different angles in relation to the axis thereof, and therefore said thimble can be adjusted and set axially in line with the direction in which the hot-air pipe P is to be extended.

In order to render the joint between the rim t and shell a air-tight, I form said rim with a rabbet c in its inner edge, and in said rabbet I insert a packing d, of suitable cement, as shown in Fig. 2 of the drawings, said rabbet being easily accessible for packing the joint after the thimble is adjusted. The thimble when once set into its requisite position remains permanently in its position,andtherefore the joint is permitted to be cemented,as aforesaid.

Having described my invention, What I claim as new, and desire to secure by Letters Patent. is-

The combination, with, the casing 0, provided with the opening 0, of the annular globular shell a, rigidly attached to said casing and provided with the cross-bar b, the thimble t, formed with the annular rim t and riding thereby on the convex exterior of the shell a and provided with the cross-bar b and with the annular rabbet c in the inner edge of the rim to permit the cement packing to be introduced in said rabbet after the thimble is adjusted and the spring-coupling 6, connected to the aforesaid cross-bars, all constructed and combined substantially in the manner set forth and shown.

In testimony whereof I have hereunto signed my name this 16th day of July, 1891.

CHARLES L. BEERS. [L.S.]

Witnesses:

MARK W. DEWEY, J. J. LAASS. 

